For millions of commuters around the world, motorcycles are a compact and cheap way of getting around town in congested traffic. The Victory Vision is the absolute opposite - there's only been a handful of production bikes ever made that are bigger and heavier than this 400-kilogram, 1740cc American behemoth. It's built to eat up thousands of open-road miles with Harley-beating performance and buttock-coddling luxury - but in a surprise twist, this retro-futuristic mammoth can actually handle surprisingly well to boot. Loz Blain discovers how 10 days on one of the top five heaviest production bikes ever built can change your perspective on motorcycling in our video road test.